140 Elliot New Mammals. 



Color. Sides of head grayish white; nose and top of head light brown 

 and gray mixed ; entire body above and below burnt umber, blackish on 

 dorsal region ; entire throat beneath blotched with orange; fore and hind 

 legs black ; tail black, base of hairs on proximal half burnt umber; ears 

 like body externally, white internally. 



Meotwr^mtfUt. Total length, nose to end of hairs of tail, 785 ; tail to end 

 of hairs, 2(57; hind foot, 85 (skin). Skull (broken): Zygomatic width, 50; 

 intertemporal width, 16; length of nasals, 15 ; width of rostrum at canines, 

 18; palatal length, 41 ; length of upper tooth row, outer edge of canine to 

 posterior edge of last molar, 30; length of mandible, 51 ; length of lower 

 tooth row, 36. 



Remarks. About two years ago an order was given to a captain of a 

 whaling vessel to get some marten during his trip to the Arctic Sea, with 

 skulls and everything complete for Museum specimens, and the result was 

 the five examples now in the Museum, procured at the mouth of the 

 MacKenzie, the ship's winter quarters, presumably from the Eskimos. The 

 peculiarity of these marten is their very dark color (even when compared 

 with M. a. kenaiemix), and the long black tail. The country between the 

 presumed range of the new form and M. a. k^nai.cnsis is occupied by the 

 M. actuosa Osgood, a fine series of which is in the Museum collection from 

 the Bering Sea coast of Alaska, and which is totally different from the new 

 form. The exact locality of these specimens is not known, but as they 

 were received at the ship in the winter, it may be considered to be the first 

 wooded district in the vicinity of the MacKenzie, from its mouth as one 

 ascends the stream. It was stated that the examples came from the mouth 

 of the MacKenzie, but as there are no trees there, the type locality is prob 

 ably farther up the river. 



The skull of M. boria compared with M. a. kenaiensis has a narrower 

 rostrum, more constricted intertemporal region, and wider palate. 



